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Bromothymol blue (also
known as
bromothymol sulfone phthalein and BTB) is a pH indicator. It is
mostly used in
applications that
require measuring substances...
- of water, 1-propanol, phenolphthalein,
sodium hydroxide,
methyl red,
bromothymol blue,
sodium bisulfite, and
thymol blue. The
colours that
indicate the...
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Cystine promotes the
formation of cystine-dependent
dwarf colonies.
Bromothymol blue is the
indicator used in the agar, it
changes to
yellow in case...
-
indicators would be
appropriate (for
instance litmus,
phenolphthalein or
bromothymol blue). If one
reagent is a weak acid or base and the
other is a strong...
-
recovery of V.
cholerae and
inhibits the
growth of others.
Thymol blue and
bromothymol blue are
included as
indicators of pH changes.
Approximate amounts per...
-
serves as a
component of
universal indicator,
together with
methyl red,
bromothymol blue, and
thymol blue.
Phenolphthalein adopts different forms in aqueous...
- phosphate, and
magnesium sulphate. It also
contains bromothymol blue, a pH indicator.
Bromothymol blue is
green at pH
below 6.9, and then
turns blue at...
-
methyl red and
bromothymol blue.
Methyl red
produces a
colour change from red to
yellow in the
range of pH 4 to 6 and the
bromothymol blue
changes from...
- are a
subclass of
triarylmethane dyes.
Common phthalein dyes include:
Bromothymol blue
Bromocresol green Bromocresol purple Cresol Red o-Cresolphthalein...
-
citrate and
ammonium ions (nitrogen source) and
bromothymol blue (BTB) as a pH indicator.
Bromothymol blue was
added in
order to
reduce false positives...
